Toothbrush head



FIG. 1 is a perspective view of a toothbrush head;

FIG. 2 is a front view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines are used in the drawings to designate portions of the toothbrush head that form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush head, as shown and described. 